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FMS #24 Site Investigation Report <br />California Army National Guard <br />• <br />Table 3-2. (Continued) <br />Sample <br />Sample Depth <br />Concentration Water Quality Goal <br />Number <br />(feet bgs) Analyte <br />Reported in mg/L (µ /L) (µg/L) <br />B32 <br />Xylenes <br />3.72 (3,720) 1,750 <br />(cont'd) <br />(Primary MCL) <br />TAME <br /><0.002 — <br />TBA <br /><0.01 — <br />DIPE <br /><0.002 — <br />EtBE <br /><0.002 — <br />MtBE <br /><0.001 — <br />Lead <br /><0.05 — <br />bgs = <br />below ground surface <br />NS = not sampled <br />DIPE = <br />di -isopropyl ether <br />PRG = Preliminary Remedial Goal <br />EtBE = <br />ethyl tert-butyl ether <br />TAME = tert-amyl methyl ether <br />FMS = <br />Field Maintenance Shop <br />TBA = tert-butyl alcohol <br />MCL = <br />maximum contaminant level <br />TPHD = total petroleum hydrocarbons as diesel <br />mg/L = <br />milligrams per liter <br />TPHG = total petroleum hydrocarbons as gasoline <br />MtBE = <br />methyl tert-butyl ether <br />UST = underground storage tank <br />ND = <br />non -detect <br />µg/L = micrograms per liter <br />Notes: <br />Bold indicates <br />contaminant concentration exceeds listed Water Quality Goal. <br />Reported concentrations have been converted from mg/L <br />to µg/L for comparison. <br />Source: Versar, Inc., 2004 <br />Regional Water Quality Control Board, 2003 <br />• <br />• <br />K:\Wprocess\00251\CA ARNG\Stockton FMS 24 SPSIDrafl_dev.doc B-5 December 2007 <br />